Zero-, one-, two- and three-dimensional supramolecular architectures sustained by Se•••O chalcogen bonding: A crystallographic survey

The Cambridge Structural Database was evaluated for crystals containing Se center dot center dot center dot O chalcogen bonding interactions. These secondary bonding interactions are found to operate independently of complementary intermolecular interactions in about 13% of the structures they can potentially form. This number rises significantly when more specific interactions are considered, e.g. Se center dot center dot center dot O(carbonyl) interactions occur in 50% of cases where they can potentially form. In about 55% of cases, the supramolecular assemblies sustained by Se center dot center dot center dot O(oxygen) interactions are one-dimensional architectures, with the next most prominent being zero-dimensional assemblies, at 30%. (C) 2020 Elsevier B.V. All rights reserved.

Automated summary

The Cambridge Structural Database was used to evaluate crystals containing Se⋯O chalcogen bonding interactions. These interactions can operate independently of complementary intermolecular interactions, with one-dimensional and zero-dimensional assemblies being the most prominent in around 55% and 30% of cases, respectively. Specific interactions, such as Se⋯O(carbonyl), occur in 50% of cases where they can potentially form.